CVE-2026-91279 Oracle Corporation CVE debrief

Who should care

Defenders responsible for JD Edwards EnterpriseOne Tools, particularly those with network exposure, should assess their systems for potential vulnerabilities and apply necessary patches or compensating controls.

Why it matters

CVE-2026-91279 is a medium-severity vulnerability in JD Edwards EnterpriseOne Tools that allows unauthenticated attackers to compromise the product via HTTP, potentially impacting additional products. Defenders should assess their systems, apply patches, and monitor for suspicious activity.

• Potential unauthorized data access and modifications.
• Possible impact on additional products due to scope change.
• Requires verification of affected versions and remediation status.
• Necessitates monitoring for suspicious activity.

Technical summary

The vulnerability in JD Edwards EnterpriseOne Tools, component Web Runtime SEC, allows unauthenticated attackers with network access via HTTP to compromise the product. Successful attacks require human interaction from a person other than the attacker and can result in unauthorized update, insert or delete access to some of JD Edwards EnterpriseOne Tools accessible data as well as unauthorized read access to a subset of JD Edwards EnterpriseOne Tools accessible data.

Defensive priority

Medium

Recommended defensive actions

• Review and apply Oracle's security patches for JD Edwards EnterpriseOne Tools.
• Restrict network access to JD Edwards EnterpriseOne Tools to minimize exposure.
• Monitor for suspicious activity and implement compensating controls as needed.
• Verify affected versions and remediation status.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in JD Edwards EnterpriseOne Tools. Oracle's security alert also provides relevant information. The vulnerability has been assessed as medium severity with a CVSS score of 6.1. The affected versions are 9.2.0.0-9.2.26.5. Defenders should verify their systems' versions and apply necessary patches or compensating controls. The CVE record was published on 2026-10-20T22:20:29.280Z and has not been modified since then. The NVD entry and Oracle's security alert offer further

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.